Improvement in car-doors



UNITED STATES PATENT OEEIoE.

JAMES MILLER AND FRANCIS O. L. G. SUSEMIHL, OF DETROIT, MICHIGANASSIGNORS OF ONE-THIRD THEIR RIGHT TO WILLIAM J. WATSON, OF

CHICAGO, ILLINOIS.

IMPROVEMENT IN CAR-DOORS.

Specification forming part of Letters Patent No. 198,408, dated December18, 1877 application filed November 26, 1877.

To all whom it may concern:

Be it known that we, J AMES MILLER and FRANCIS 0.11. G. SUsEMIHL,ofDetroit, Michigan, have invented a new and useful Improvement in Doorsfor Grain-Oars, of which the following is a specification:

The object of our invention is to provide a freight-car, which is usedfor the transportation of grain, with a convenient supplementary door,which, when let down, will close the lower portion of the usual doorway,but which can be easily raised and made to occupy a position out of theway against the side of the car, and which at the same time is confinedto the car, so that it cannot easily be taken out.

In the accompanying drawings, Figure 1 is a vertical section of acar-body with our improved supplementary door as it appears when letdown to close the doorway Fig. 2, the same, showing the door as itappears when partly opened; Fig. 3, a vertical section of part of Fig. 1on the line 1 2; Fig. 4, a sectional plan on the line 3 4; and Fig. 5, asection drawn to an enlarged scale on the line 5 6, Fig. 2.

A represents part of one side of a car-body; B, part of the roof; D, thefloor; and H the usual doorway, extending from the post a to the post aof the car-body, and from the floor to the plate under the root. To thisdoorway is adapted an inner door, G, which, when let down, as shown inFig. 1, will close so much of the lower portion of the doorway as willprevent the grain from escaping when the car is loaded and duringtransportation. One end of this door Gis arrangedto fit snuglyin apocket, 12, made, preferably, of castiron, and fastened securely to thedoor-post on the inside of the car. Theupperend of the recessinthispocket is, by preference, inclined, so that the end of the doorwhich projects into the pocket is held down firmly to the floor. Theother end of the door bears against an inclined slotted bar, I, which issecured to the body of the car, and the door is confined to this bar bya stud or button, m, (shown in the enlarged view, Fig. 5,) this studbeing secured to the door, and being arranged to slide freely in theslot of the bar, from which it cannot escape, owing to its head a. Theslot in the bar is enlarged at the bottom, so as to form an openinglarge enough to admit the head of the stud when the door is being fittedto its place. As this opening is at a point below that occupied by thepin m when the door is down, the latter cannot be withdrawn from theslot in opening or lower ing the door.

In unloading the grain, the end of the door adjacent to the bar I willbe raised, while the other end recedes from the pocket b and moves alongthe floor of the car, the stud m traveling upward in the slotted bar I,and at the same time moving sidewise, owing to the inclined position ofsaid bar. The upward and sidewise movement of the door continues untilthe stud m arrives at or near the upper end of the slot in the bar I,when the door will be in the vertical position shown by dotted lines inFig. 1.

The movement of the door can be easily accomplished, as an outlet forthe grain will be formed as soon as the door commences to move.

We claim as our invention- 1. The combination, in a grain-car, of a pivoted door, Gr, adapted to the lower portion of the doorway inside thecar, with an inclined guide for the pivot.

2. The combination of the door G and its stud m with the inclined guideI, secured to the side of the car, on the inside of the same, as setforth.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

JAMES MILLER. FRANCIS C. L. G. SUSEMIHL.

Witnesses:

HERBERT H. HEWITT, F. O. ADAMSON.

